calculate the number of moles of C2H6 in 9.92 Ã10^23 molecules of C2H6. Express answer using three sig figs.
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Calculate the moles of:
Cu in 9.1Ã1021 atoms of Cu
C2H6 in 9.71Ã1023 molecules of C2H6
Express your answer using two significant figures.
calculate the mole of C2h6 in 2.91*10^23 molecules of C2H6.
A gas has a volume of 4.40L at 0degreesC. What finaltemperature, in degrees Celsius, is needed to change the volume ofthe gas to each of the following, if P and n do not change?
A. 2.00L
Answer in three sig figs
B. 1000mL
C. 270L
Answer in two sig figs
D. 55.0mL